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Take pH measurement of most types of aqueous solutions and solid surfaces.
This Hydrion set includes its own color standards and the means for verifying these standards. A wide range pH pencil and three short range pencils measure the pH reaction of solid surfaces.
The universal indicator solution provides continuous pH measurements. The Low Ion Kit gives pH measurement of water and unbuffered solutions. Two superior test papers cover the entire range from 0.0 to 14.0 for conventional measurements of liquids.
Includes: four pre-weighed amounts of quick dissolving buffered powder for preparation of standard buffered solutions and a 35-page teacher’s manual.

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